Re: [eclipselink-users] ReadAll queries ignores cache

[Tom Ware <tom.ware@xxxxxxxxxx>]

HI Mohamed,

  ReadAll queries must go to the database to get the primary keys - to ensure 
that all the elements in the database are returned since there is no guarantee 
all the elements can be found in the cache.

  For objects that exist in the cache, the query will return those objects.

-Tom

Mohamed ElShami wrote:
> Hi all,
>
> I have a find all query like this:
>
> @NamedQuery(name = "Department.findAll", query = "SELECT d FROM Department
> d",
> hints = {
>    @QueryHint(name = "eclipselink.cache-usage", value =
> "CheckCacheThenDatabase"),
>    @QueryHint(name = "eclipselink.query-type", value = "ReadAll")
> })
>
> The query still goes to the database everytime. Does Eclipselink ignores
> cache for read all?
>
> Thanks in advance,
> Mohamed
>
>
>
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